Caption: Mining techniques, artwork published in Specula Physico-Mathematico-Historica (1696), an encyclopedia of science by the German monk and author Johann Zahn (1641-1707). The text is in Latin. The cutaway artwork at top shows the different sorts of mining tunnels, while the artwork at bottom shows how miners and ore can be lifted up and down shafts sunk into the ground. The title refers to metal ores.